Door for elevator-shafts



A. RUSH.

DOOR FOR ELEVATOR SHAFTS.

APPLICATION FILED OCT-9,1919.

Patented Jun 1, 0.

2 SHEETS-SHE Swwwtoz ALbertRush I A. RUSH.

DOOR FOR ELEVATQR SHAF-TS. APPLICATION FILEDDCT. ail-9L9.

Patented June 1, 1920.

2 SHEETS-SHEET 2.

AlbartRush ALBERT Rosier, on ooLUiVrBUs, OHIO,

DOOR FOR ELEVATOR-S-HAFTS.

Specification of Letters Patent.

Patented June 1, 1920.

Application filed October 9, 1919. Serial No. 329,499.

To all whom it may concern: Be it known that I, ALBERT RUSH, a c1t1- zen of the United States, residing at Colum- 0 bus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Doors for Elevator- Shafts, of which the following is a specification.

This invention relates to the type of door for elevator shafts'shown and described in the Letters Patent of the United States issued to me September 9, 1919, No. 1,315,? 95, said type being characterized by the feature, among others, that the door can be made of full height and raised and lowered and supported when raised by means onthe top of the car.

The object of the present invention is a modification including special means whereby vertical guides on the car which permit the car to pass a door without its operation may be utilized to deflect the door when raised away from the doorway wall above the doorway and conversely toward its doorway closing position when lowered.

The invention is embodied in the example herein shown and described, the features of novelty being finally claimed.

In the accompanying dragings Figure 1 is a vertical sectional view through the doorway wall of an elevator shaft showing my invention applied thereto, the door being in its lowered position.

Fig. 2 is a similar view showing the door raised.

Fig. 3 is a horizontal section on a slightly larger scale on the line IIIIII Fig. 1, looking down.

Fig. 1 is a similar section on the line IVIV Fig. 1 also looking down.

In the views 5 designates the doorway wall of the building having at the floors thereof opening 6 with sill 6 The character 7 designates a door having connected therewith chains or flexible members 8 provided with weights 9, the chains passing over pulleys 10 journaled on the opposite sides of the elevator shaft in position to pull the upper end of the door toward the center of the well. At its. upper end the door has pivoted to its opposite upper corners arms 11 provided with inwardly projecting lateral studs 11 and at the opposite lower corners arms 12 provided with lateral studs 1%. The studs 11 and 12 project into vertically arranged channels 13 secured to the opposite sides of the car or carriage 141. These channels extend above the top of the car where they are braced by bars 13. The outer or building side of the door is provided with hooks that, when the door is lowered, take into sockets 16 in the doorway wall at opposite sides of the doorway to hold the door from facewise movement when closed. j

V The opposite side walls of the elevator shaft are provided with stops 17v against which outward lateralprojections 11 on the arms 11 abut when the door nearly approaches its closing position thus arresting the motion of those ends of'the arms 11 that travel in the guides or channels 13 without arresting their pivoted ends thereby causing said arms to deflect the door toward closed position, as shown in Fig. 1. The gravity of the door, or a force applied to it in closing the same, causes the arms 11 to assume or approach horizontal position, as shown in Fig. 1, to close the door. The rigid arms 12 with the studs 12 serve as fulcrums upon which the upper portion of the door is'deflected inward when the door is raised. It will be observed that by reason of this construction the door can be raised past the projecting sill of the doorway next above'and the edge of said sill made to nearly coincide with the floor of the car so as to leave no considerable gap between them.

The door can be raised and lowered by hand or by other suitable power applied thereto.

When the door is closed the car moves past the same without, in any way, affecting the same, the channelsof guides 13 traveling past the studs 11 and 12.

The forms of the parts can be changed without departing from the gist of the invention as claimed.

What I claim is:

. 1. In a building having an elevator shaft, dorways leading thereto and a car to move said shaft, the combination of a door, a guide on the car projecting above the top of the car, hinging means connecting the upper portion of the door with said guide, rigid means connecting the lower portion of the door with said guide and means whereby said upper hinging means may be deflected to cause the deflection of the upper portion of the door when raised.

2. In a building having an elevator shaft, doorways leading thereto and a car to move in said shaft, the combination of a door, a vertical guide on the car, hinging means connecting the upper portion of the door with said guide, rigid means connecting the lower portion of the door with said guide,

and means whereby said upper hinging means may be deflected to cause the deflection of'the upper portion of the door when raised.

. 3. In a building having an elevator shaft, doorways leading thereto, doors for the doorways anda car to move in said shaft, the combination of a door guide on the car projecting above the top of the car, hinging means connecting the upper portion of a door with said guide, rigid means connecting the lower portion of the door with said guide, means whereby said upper hinging means may be deflected to cause the deflection of the upper portion of the door when raised, and means for arresting one end of said hmgmg means when the door approaches closing position to cause the closing of the door.

4. The combination with a building having an elevator shaft, a doorway leading from a floor of the building to the shaft, and a car to move in said shaft, of an upwardly sliding door for the doorway, a guide for the door, hinged means connecting the door with the guide and a fixed stop to arrest said hinged means when said door approaches closing position to cause facewise movement of the door to close the same;

5. In a building having an elevator shaft, doorways leading thereto and a car to move in said shaft, the combination of a door, a guide on the car, hinging means connecting the upper portion of the door with said guide, rigid means connecting the lower portion of the door with said guide and means whereby said upper hinging means may be deflected to cause the deflection of the upper portion of the door when raised.

ALBERT RUSH. 

